Vaidya—Bonner时空Klein—Gordon场的二次量子化

将Vaidya－Bonner时空中视界附近的Klein－Gordon场二次量子化，并利用Bogolubov变换方法，得到了带电蒸发黑洞的Hawking热谱．其结果表明，入射真空态经视界表面散射后，成为含有热粒子的出射态，这些热粒子具有温度为T的黑体谱．     

煤炭产业动态投入产出多目标优化模型

文章以煤炭产业的适度发展为出发点,在考虑中国经济发展速度与综合经济平衡的前提下,基于动态投入产出分析技术以及多目标规划理论建立了煤炭产业多目标动态投入产出优化模型.并根据各产业煤炭消耗变化规律提出了应用马尔科夫概型修订直接消耗系数的方法,同时应用计量经济学方法对中国未来十年的煤炭消耗量作出了预测,为准确求解该模型提供了依据.     

人力资本所有者参与企业利润分配的再探讨

人力资本的财务含义是能够给企业带来超额利润的人力资源的价值。据此人力资本所有者应参与企业超额利润的分配,运用罗宾斯坦的轮流叫价谈判模型进行分析,人力资本所有者凭借其稀缺性具有先动优势应获得超额利润的绝大部分,具体分配的比例取决于与物力资本所有者的博弈。     

Revisiting the flexibility and regularity properties of the asymptotically ideal production model

In this paper we estimate the flexibility properties and regular regions for the first three orders of the seminonparametric Asymptotically Ideal Model (AIM) under four different types of constant returns to scale production technologies. The AIM model's parameters are estimatedfrom a Monte Carlo simulation where the data is generated from a three input, one output, globally regular Constant Differences of Elasticity of Substitution function. The Monte Carlo's input quantity and elasticity of substitution estimates at the unit vector are graphed along with the area of the relative price space where the AIM model is monotonically increasing andquasi-concave.     

Lagrance-multiplier tersts for weak exogeneity: a synthesis

This paper unifies two seemingly separate approaches to test weak exogeneity in dynamic regression models with Lagrange-mulptiplier statistics. The first class of tests focuses on the orthogonality between innovations and conditioning variables, and thus is related to the Durbin-Wu-Hausman specification test. The second approach has been developed more recently in the context of context of cointegration and error correction models, ad concentrates on the question whether the conditioning variables display error correction behaviour. It is shown that the vital difference between the two approaches stems from the choice of the parmeters of interest. A new test is derived, which encompasses both its predecessors. The test is applied to an error correction model of the demand for money in Switzerland.     

MAXIMUM LIKELIHOOD ESTIMATION OF GROSS FLOWS

A method of maximum likelihood estimation of gross flows from overlapping stratified sample data is developed. The approach taken is model-based and the EM algorithm is used to solve the estimation problem. Inference is thus based on information from the total sample at each time period. This can be contrasted with the conventional approach to gross flows estimation which only uses information from the overlapping sub-sample. An application to estimation of flows of Australian cropping and livestock industries farms into and out of an “at risk” situation over the period 1979–84 is presented, as well as a discussion of extensions to more complex sampling situations.     

Some new classes of multivariate survival distribution functions

The concept of the univariate mean remaining life (m.r.l.) function is generalized to the multivariate case. The multivariate mean remaining life (m.m.r.l.) function is utilized to introduce four new classes of multivariate survival distribution functions (s.d.f.'s). Each of these classes is a new generalization of the univariate decreasing mean remaining life (DMRL) class of s.d.f.'s. The duals of these classes are introduced. Some properties, physical interpretation, and relationships among these classes are investigated. Also for each case, the class of s.d.f.'s common in a class and its dual is characterized.     

试析电影与小说《手机》的复调分层

电影与小说是两种不同特质的媒介,意义代码的生成和转换也存在较大的差别。从复调理论的角度,对电影与小说《手机》的结构、时空、情感进行简略分析,以期对眼下电影与小说结盟的新样态作一些理性的审视。     

北京奥运基础设施项目融资模式初探

针对目前北京奥运基础设施建设对资金的迫切需要和项目融资市场的巨大发展潜力,对项目 融资各种模式的优缺点进行分析,分层次探讨北京奥运会基础设施建设可采取的融资方式, 提出相关建议     

情感对诗歌的审美作用论略

情感本身具有巨大的美学价值 ,没有情感的诗歌是没有审美价值的诗歌。诗歌的三种成诗模式皆以情感为基础。其三种成诗模式为 :( 1 )情景交融 +韵律 ;( 2 )情事交融 +韵律 ;( 3 )情理交融 +韵律。情感本身代表着一种创作主体与客体的契合与交感。